111120120220101 has 16 divisors (see below), whose sum is σ = 154642947876864. Its totient is φ = 70840396416944.

The previous prime is 111120120220093. The next prime is 111120120220111. The reversal of 111120120220101 is 101022021021111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111120120220101 - 2³ = 111120120220093 is a prime.

It is a super-2 number, since 2×111120120220101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120120220111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213495921 + ... + 214015766.

It is an arithmetic number, because the mean of its divisors is an integer number (9665184242304).

Almost surely, 2^{111120120220101} is an apocalyptic number.

It is an amenable number.

111120120220101 is a deficient number, since it is larger than the sum of its proper divisors (43522827656763).

111120120220101 is a wasteful number, since it uses less digits than its factorization.

111120120220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427515480.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111120120220101 its reverse (101022021021111), we get a palindrome (212142141241212).

The spelling of 111120120220101 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twenty million, two hundred twenty thousand, one hundred one".